Amaj7 Chord on Piano
Amaj7 = A – C# – E – G# (Root, Major 3rd, Perfect 5th, Major 7th)
Swap the white G of A7 for the black key directly above it, G#, and the whole personality of the chord flips: Amaj7 is A, C#, E, and G#, and rather than pulling anywhere it simply glows. It's the Imaj7 chord in A major, exactly the voicing neo-soul and singer-songwriter keyboardists reach for when a phrase should feel like home without slamming the door on it, and the shape asks noticeably more of the hand than its dominant-seventh cousin despite sharing the identical underlying triad.
Two fingers now work raised keys at once — the middle finger holding C#, the pinky stretching further up to G# — a busier hand than A7's single black-key reach even though both chords are built from the same A major foundation. The character lives entirely in that G#-to-A gap at the top of the voicing: barely a half step, tight enough to create warmth without any pull toward resolution. Songwriters lean on the Imaj7 in A major precisely for that unresolved glow, and the identical shape does double duty as the IVmaj7 inside E major, lending that key's subdominant a similar soft-focus color. Acoustic guitar-and-piano duos in particular reach for Amaj7 as a way to dress up A major's already-familiar sound without abandoning the key both instruments handle so comfortably.
Voicings
Root Position
1st Inversion
How to Practice It
Since three of Amaj7's four notes are already familiar from the plain triad, simply add the pinky's stretch to G# once A major feels automatic under the hand. A genuinely revealing ear exercise is toggling between A7 and Amaj7 with your eyes closed, naming which one you hear based purely on whether it feels like it wants to move (A7) or simply sit still (Amaj7). In second inversion — E, G#, A, C# — listen for how tightly G# and A crowd together at the top of the voicing, since that closeness is the audible signature of every major seventh chord.
Common Progressions
- Amaj7 – F#m7 – Bm7 – E7, a jazz turnaround built from A major's own diatonic chords
- Amaj7 – Dmaj7 (Imaj7 – IVmaj7), two chords that glow without ever quite resolving into each other
- Dmaj7 – Amaj7, the tonic approached from its subdominant side rather than the dominant
- Amaj7 – C#m7 – F#m7 – Dmaj7 (Imaj7 – iii7 – vi7 – IVmaj7), a walk through A major's softer chords
- Bm7 – E7 – Amaj7 (ii7 – V7 – Imaj7), a jazz cadence that lands on a hazier major-seventh tonic
FAQ
- What single note separates A7 from Amaj7?
- The seventh: A7 uses G, a white key that creates a restless pull, while Amaj7 uses G#, a black key that produces a warm glow with nowhere to go.
- Is Amaj7 physically harder to reach than plain A major?
- A little — it asks two fingers to commit to black keys, C# and G#, rather than the single raised key the plain triad needs.
- Why do songwriters favor Amaj7 over a plain A triad in some passages?
- Its glowing, unresolved character suits sections that should feel settled without sounding fully concluded, which is exactly why intros and verses reach for it so often.
- Why do acoustic duos favor Amaj7 in guitar-and-piano arrangements?
- It dresses up A major's already-familiar, guitar-friendly sound with a warmer, jazzier color, without abandoning a key that both instruments handle equally comfortably.
- How many black keys does Amaj7 require compared to A7?
- Two, versus A7's one — the major seventh above A happens to land on the black key G#, while A7's flattened seventh lands on the white key G, the entire physical difference between the two shapes.
- Does Amaj7 ever function outside A and E major?
- Occasionally as a passing color chord in nearby keys, though its two clearest diatonic roles remain as the Imaj7 in A major and the IVmaj7 in E major.
- Do folk-jazz arrangers use Amaj7 often?
- Yes — its glowing, unresolved character pairs naturally with A major's already guitar-friendly reputation, making it a common substitute wherever a folk-jazz arrangement wants added warmth.
- Is Amaj7 physically demanding compared to other major sevenths?
- Moderately — two of its four notes sit on black keys, a middling reach compared to the fully white-key ease of Cmaj7 or Fmaj7 and the three-black-key demand of Bmaj7.
Amaj7 on other instruments: Amaj7 on Guitar, Amaj7 on Ukulele. Related: how chords are built, chord finder.